S-99512A628 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in industrial environments
• Maximum torque transmission and reduced cam-out with T10 Torx drive for reliable, efficient installation
• Strong, permanent threads in plastic materials through TRS thread forming design that eliminates the need for separate tapping
• Enhanced vibration resistance and holding power thanks to the tri-lobe shank cross-section that prevents loosening
• Complete thread engagement with fully threaded design and 20 TPI for maximum fastening strength in plastic applications
• Simplified installation process with blunt tip and compatibility with standard No. 32 drill bits (0.116" diameter)
• Compliance with international safety standards including RoHS 3 and REACH for environmentally responsible manufacturing

Professional Applications & Engineering Value

These No. 5 zinc-plated steel tapping screws are specifically engineered for plastic fastening applications where reliability and durability are critical. The TRS thread forming design creates strong, permanent threads in plastic materials without generating chips, eliminating the risk of contamination in sensitive assemblies. The T10 Torx drive system ensures maximum torque transmission while minimizing tool slippage and screw head damage during installation. Combined with the tri-lobe shank cross-section, these screws provide exceptional resistance to vibration and loosening in plastic components. The zinc-plated steel construction offers reliable corrosion protection, making these thread forming screws ideal for automotive, electronics, and industrial equipment applications where plastic-to-plastic or plastic-to-metal fastening is required.

Specification Summary & Compliance

These No. 5 x 1/2" tapping screws feature a right-hand thread direction with 20 threads per inch and fully threaded design for maximum engagement. The screw system follows inch measurements with a thread diameter of 0.125" and pan head style measuring 0.245" in diameter. Manufactured to meet industry standards for thread forming screws in plastic applications, these fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industrial compliance requirements are met.